carb balancing?

[Punkstig]

Undertaken this task again today (3rd times the charm) after forgetting all about the restrictors on my previous attempts.

The issue I have is that they are completely out of spec - I can sync them up but they all sync to about 19-20 cmHg whereas the spec says 23-25

I'm also pretty certain that cylinder 1 is the culprit in some way. If I adjust the centre screw in favour of 3+4 the revs rise and so does the cmHg across all cylinders - this is an even increment across 3+4 then a slightly lower on 2 and only very slight increment on 1. Same sort of circumstance if I adjust the left hand screw (for 1+2) in favour of 2. 2 obviously rises but so does 1, just at not such an extreme rate. With 3+4 if I adjust then one will drop about as much as the other increases, which is what I expect to happen

So basically, what the crap is going on with cylinder 1?! I unfortunately don't know enough about the importance or meaning of these measurements to start building up a prognosis

how gentle are you using the screwdriver- you should be trying your damned best not to be pushing on it at all as this will affect the gauge readout, also after every little adjustment blip the throttle and re read the gauges, its this that makes adjusting time consuming!